Vulnerability · Published Feb 10, 2026 · Assigned by GitHub_M

CVE-2026-26009Catalyst Affected by Remote Code Execution as Root via Containerized Install Script Execution

Critical 10.0

In plain English

A critical-severity OS command injection in catalyst from karutoil. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)0.6%top 53.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Catalyst is a platform built for enterprise game server hosts, game communities, and billing panel integrations. Install scripts defined in server templates execute directly on the host operating system as root via bash -c, with no sandboxing or containerization. Any user with template.create or template.update permission can define arbitrary shell commands that achieve full root-level remote code execution on every node machine in the cluster. This vulnerability is fixed in commit 11980aaf3f46315b02777f325ba02c56b110165d.

Affected products (as reported)

Vendor	Product	Versions
karutoil	catalyst	< 11980aaf3f46315b02777f325ba02c56b110165d

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

https://github.com/karutoil/catalyst/security/advisories/GHSA-xv5r-cpcw-8wr3 x_refsource_CONFIRM
https://github.com/karutoil/catalyst/commit/11980aaf3f46315b02777f325ba02c56b110165d x_refsource_MISC